<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="../../js/jquery-1.4.2.js"></script>
</head>
<body>
    {% if age < 18 %}
        <h1>对不起未成年人进制进入</h1>
    {% elif age >= 18 %}
        <h1>您需要成为会员才能进入</h1>
    {% endif %}
</body>
</html>